| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide ink for inkjet recording, in which a colorant is not agglomerated, a bad influence is not exerted on the water resistance of a recorded matter and the optical density of the recorded matter is not decreased when both of a pigment and a dyestuff which have the similar color to each other are used as the colorant simultaneously. <P>SOLUTION: Both of the self-dispersible pigment, the surface of which is modified by a sulfonate group, a sulfophenyl group or salt of them, and the anionic water-soluble dyestuff are used in the ink for inkjet recording, which includes and dyestuff have the similar color to each other and the amount of the dyestuff to be blended in the total amount of the ink for inkjet recording is 0.5-5.5 wt% and that of the pigment to be blended in the total amount of the ink for inkjet recording is also 0.5-5.5 wt%. <P>COPYRIGHT: (C)2009,JPO&INPIT |
